Gearing.



No. 837,125. PATENTED Nov. 27, 1906. o. o. MOTTE.

GEARIN G.

APPLIUATION FILED Nov. 23. 1905.

2 SHEETSSHEET CARL Cf RIOTTE, OF JERSEY CITY, NEW JERSEY.

GEARING.

Specification of Letters Patent.

Patented Nov. 27, 1906.

Application filed November 23. 1905.v Serial No. 288.664.

To @ZZ whom it may concern'.-

Beit known that I, CARL C. Riorrn', a citizen of the United States,residing at Jersey City, Hudson county, New Jersey, have inventedcertain new and useful Improvements in Gearing, of which the followingis a full, clear, and exact description.

My invention relates to mechanism for use in connecting or disconnectinga drivingsha-ft with a driven shaft, the construction also being suchthat the driven shaft may be rotated in the same or a reverse directionto that of the driving-shaft or uncoupled therefrom.

It is the object of my invention to provide against overloading theengine when the driven shaft is reversed. In clutch mechanisms whereplanetary gears are employed when the driven shaft is reversed aconsiderable friction is set up which in addition to the load on thedriven shaft tends to overload the engine and out its speed down. Sincesuch devices are ordinaril applied to gas-engines, it is obvious thattiie cutting down of the speed by an unnecessary frictional load is adouble handicap, because not only is the s eed out down, but the enginebeing slowed own `loses substantially in its efficiency. By my inventionthis danger is entirely eliminated, and the engine works with the sainefreedom and certainty when the reverse is applied as though the drivenshaft were being propelled in the same direction as thc engine-shaft.

Another object of the invention is to improve the clutch-actuatingmechanism and to provide for convenient and ready adjust.-

` ment of the same.

'supporting frame or bracket..

ot i

These and other advantages will be apparent to the mechanic skilled inthe art from an understanding of the drawings and a readin@ of thespecification.

igure 1 is a longitudinal sectional view of an apparatus of my improvedconstruction, certain parts being shown in elevation. Fig. 2 is a sideelevation as said apparatus appears in lace. Fig. 3 is an end elevationof the mec anism looking from left to right, certain parts being shownin section. lfig. 4- is a detail view in perspective. Fig. 5 is an endelevation of the planet ary gears and their lfig. is ancr detail view. 1is the driving-shaft. 2 is the driven shaf" 3 is the gear-case mountedto revolve on the ends of the driving and driven shafts and overstandingthe adjacent ends of said shafts.

4 is a bevel-gear fixed on shaft 1.

5 is a bevel-gear fixed on shaft 2.

6 is a frame or planetary-gear bracket. 7 7 are planetary gears mountedon suitable pivotal bearings 8 S in said bracket 6. The bracket 6 isrevolubly mounted onvthe hubs .of the gears 4 and 5 and is keyed to thegearcase 3. The gears 4 5 are of relatively different diameters', thegear 4 being smaller than gear 5. The planetary Gears 7 are mountedobliquely, so as to mesli with both of said gears 4 5 at all times.

3 is an open-ended extension at one end of the gear-case, within whichis located an expanding clutch-ring t). This expanding clutch-ringisbest seen in Figs. 3, 4, and 6. The ring 9 is secured at 10L1 to abracket 10. Thel bracket 10 is keyed to the driven shaft 2. Between thefree ends of the clutch-ring 9 I locate a novel form of expandingmechanism whereby said ring may be expanded and whereby wear may becompensated for whenever necessary. This expanding mechanism comprises ashaft 11, revolubly mounted in the bracket 10. 13 is .a dog or 'armmounted on said shaft 1 1 and capable of being angularly adjustedthereon. 11a 11b 11b are cams or equivalent devices on sha-ft 11. 12 12are. spreader members serving as links, one end of e ach spre adermember taking up against a suitable abutment 9 Q on the ring 9, theother end of each of said members taking up against the cams 11EL 11b,respectively. 13 is an adjusting-screw carried by the arm shoulder onthe shaft 11, whereby the angular adjustment ofthe arm 13 may beeffected by moving thel screw in or out.

From the foregoing it will be seen'that when the arm 13 isl swung to theleft, as viewed in lf ig. 3, a rotary motion will be iinparted to the.shaft 11 'and the cams 11L 11b, the. latter spreading the links 12 12and causing thering El to expand, so as to bring it into lockingengagement with the end 3 of the case 3. 'i

14 is a band-ln'ake for the case b. 14u is an offset portion orshoulder, which may be i fastened to the base 15 so as to prevent said jhrakc rotating with the gear-case. One'free t end 14D of said brake mayalso receive a rigid 13, said screw end bearing against va suitable" IOC' retracted.

ysupport on the base 15, while the other end 14c may b e engaged by oneend of a link 16,

cam an said shaft 18, arranged to alternately operate with the arm 20.21 is a cone slidable upon the driven shaft The arm is suitably engagedwith the cone 21, as by a strap 22, sothat by moving the arm 20 the cone21 may be advanced or 13b isan antifriction-roller on vthe end of thearm 13 and in the path of movement of v the cone 21.

. 21a is an annular groove in the cone 21, in which groove the peripheryof the antifriction-roller 13b stands when the cone is advanced. Thisserves as a means for preventing accidental dislodgment.

The end of the cam 19 may be flattened, as indicated in Fig. 2, so thatit will take a square bearing against the vlever 17 when the same isset, said'position being indicated in Fig. 2. This serves as a means toprevent the accidental dislodgment of the reverse mechanism. The angularposition o f the arm 2() ,and the cam 19 is such that one is entirelythrown 'out before the other-is thrown into action', with the resultthat all the parts are uncoupled at the intermediate osition.

Operation: For normal running a ead the controlling-lever is moved so asto cause the cone 21 to swing the arm 13 and expand the ring 9, by whichmeans the driven shaft 2 is then coupled with 4the gear-case 3. The

power going in through driving-shaft 1 will' then take the followingcourse: from drivingshaft 1 to gear 4, to Igear 7, and to the gearcase3. The gear-case 3 being locked to the shaft 2, all of the parts arerequired to revolve bodily, and hence the two shafts 1 and 2 will berevolved in the same direction at the same speed. To reverse, thecontrolling-lever is swung so as to retract the cone 21, which frees thearm 13, whereupon the ring 9 contracts and frees the case. The continuedmovement f the controlling-lever l swings the cam 19 so as to operatelever 17,

drawing the band-brake 14 tightly upon the case 3 and checking itsrotation, whereupon the power of the'driving-shaft 1 will then bedirected to the driven shaft 2 as follows: from shaft 1 to gear 4, toplanet-gear 7, which latter then being incapable of planetary movemerittransmits the power infa reverse direction to gear 5, which being keyedto driven shaft 2 rotates the latter in a corresponding direction. l

than gear 5, drives the latter more freely than if it were the samesize,v and the differencein ratios of said gears is sufficient tocompensatev for the added friction produced by the rotation of theplanetary gears 7 on their own axes. As a result of this arrangement theload upon the engine is constant whether .the driven shaft is rotated inthe forward direction or in a reverse direction.

What I claim isscribed, a driving-shaft, a driven shaft inlinetherewith, beveled gears on the ends of said shafts, said gears being ofdiHerent diameters, the smaller of said gears being always carried bythe driving-shaft, a beveled planetary gear arranged obliquely andmeshing gear-case, a bracket carried thereby, in turn carrying saidplanetary gear, means for locking said gear-case to the driven shaft,means for locking said gear-case against rotation, said locking meansworking alternately.

2. In an apparatus ofthe character desaid gears being of differentdiameters, the smaller of said gears being always carried by thedriving-shaft, a planetary beveled gear arranged' obliquely and meshingwith said first-mentioned gears at all times, a bracket for saidplanetary gears, a gear-case revolubly mounted on said shafts andcarrying said bracket, means for locking said gear-case to said drivenshaft, comprising a clutch-ring, a bracket therefor, said bracket beingcarried by said driven shaft, a cam-shaft carried by said bracket, meansof connection between said cam-shaft and `said clutch-ring, means forrotating said cam-shaft, comprising a swinging arm carried by saidcam-shaft, and an arm-operating member carried by said driven shaft. K

-3. In an apparatus of the character described, a` driving-shaft, adriven shaft in line therewith, beveled gears carried thereby, saidgears being of different diameters, the smaller of said gears beingalways carried by the driving-shaft, a planetary beveled gear arrangedobliquely and meshing with said first-mentioned gears at all times, abracket for said planetaryA gears, a gear-case revolu- /bly mounted onsaid shafts and carrying said bracket, means for locking said gear-caseto said driven shaft, comprising a clutch-ring, a bracket therefor, saidbracket being carried by said driven shaft, a cam-shaft carried by saidbracket,1neans of connection vbetween said cam-shaft and saidclutch-ring, means for rotating said cam-shaft, comprising a swingingarin carried by said cam-slurf@ and l an arm-operating member carried bysaid As before stated, the gear 4, being smaller at all times with saidrst-men'tionedgears, a`

1. In an apparatus of the character described, a driving-shaft, a drivenshaft inline therewith, beveled gears carried thereby,

ICO.

and-brake for the outer side of said gear-- case, said'band-brake beingheld against rotary movement, a link connecting one-free end of saidband-brake, a lever engaging said link, and a cam for engaging saidlever, means ormoving said earn to swing said le verand operate saidbrake.

5. In an apparatus of the character de scribed, a driving-shaft, adriven shaft in line therewith, beveled gears carried by said shafts,'said gears being of diiiierent diameters, the smaller of said gearsbeing always carried by the driving-shaft, a gear-case, a planetarybeveled .gear obliquely mounted Within said gear-case and meshing at"all, times with said first-mentioned gears, means for locking saidgear-case against rotation,

comprising a band-brake for the outer side oiV said gear-case, saidbandbrake being held against rotary movement, a link connecting one freeend of said band-brake, a lever engaging said link, an l a cam forengaging said lever, means for moving said cam to swing said lever andoperate said brake, and means for adjusting the band-brake Connection tovary the degree of clamping pressure upon the gear-case and compensateAtor Wear.

,6. In an apparatus of the character described, a driving-shaft, adriven.- shaft in line therewith, beveled gears on the ends of saidshafts, said gearsfbeing oi' diii'erent diameters, the smaller of saidgears being always carried by the driving-shaft, a beveled planetarygear arranged obliquely and meshing at" all times with saidinst-mentioned gears, a gear-case, a bracket carried thereby, in turncarrying said planetary gear, means for locking said gear-case to thedriven shaft, means. for locking said gear-case against rotation, saidlocking means Working alternately and being Jformed so as to be heldagainst aceidental disengagement from their locking p0- sitionsrespectively.

7. 'In an apparatus of the character described, a ,driving-shaft, adriven sh aft in line therewith, beveled gearsfon the ends of saidshafts,- said gears being oi'v diii'erent diameters, the smaller of saidgears being always carried by the driving-shaft, a beveled planetarygear arranged obliquely and meshing at all times ,with saidinst-mentioned gears, a gear-case, -bracket carried thereby, in turncarrying said planetary gear, means for locking said gear-case to thedriven shaft, means for locking said gear-case against rotation, saidlocking means Working alternately, and controlling means for-alternatelyactuating said locking devices, comprising a single shaft and devicesthereon tor making contact with and moving said locking device from thelocking position to the unlocking position and vice versa.

CARL C. ROTTE.

Witnesses z R. C. MITCHELL, L. VREELAND.

